Παραπομπή σε μορφή APA (7η εκδ.)

Caldwell, L. K. (1990). Between two worlds: Science, the environmental movement, and policy choice. Cambridge University Press.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Caldwell, Lynton Keith. Between Two Worlds: Science, the Environmental Movement, and Policy Choice. Cambridge: Cambridge University Press, 1990.

Παραπομπή σε μορφή MLA (8th εκδ.)

Caldwell, Lynton Keith. Between Two Worlds: Science, the Environmental Movement, and Policy Choice. Cambridge University Press, 1990.